Originally Posted by
Canuck Civic
Well I only looked at one datalog. The knock seems to be coming from the low rpm when you go WOT. Looks like around 3000rpm.
You don't knock in the upper rpm range if it was me I just advance the ignition a little bit, do a pull if no knock is detected I go a little more eventually I get a knock so I back it down 2 degrees, really is the best you can do on the street.
Your cam angles you can also play with I like to go to 45ish maybe more and start to back it down at about 6000rpm.
Obviously a real tune will work wonders especially on a dyno.
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